| 释义 |
ˈwater-hole
1. a. A hole or depression in which water collects, a pond or pool; a reservoir.
1679in Picton L'pool Munic. Rec. (1883) I. 315 Wee order that..two dangerous water holes close by the foote waye neere Richard Jones house on the heath, bee filled upp. a1774Fergusson Mut. Compl. Plainstanes & Causey 126 O' three shillings Scottish souk him, Or in the water-hole sair douk him. 1817J. Oxley Jrnls. Two Exped. N.S. Wales (1820) 154 At the eighth mile we came upon a small water⁓hole, which our poor horses soon emptied. 1843Marryat M. Violet xxi, We..encamped by the side of a small water⁓hole, formed by a hollow in the prairie. 1875Spectator (Melbourne) 20 June 94/1 A bottomless waterhole, about 300 feet wide, exists at Maryvale homestead, Gipps Land. 1903Kipling Five Nations 57 Tracked me by the camps I'd quitted—used the water-holes I'd hollowed.
b. A cavity in the bed of a river, esp., as in Colonial use, one that retains water when the river itself is dry.
1792Osbaldistone Brit. Sportsman 369 Grope to, or tickle, among fishers, signifies putting ones hand into water⁓holes where fish lie. 1848Westgarth Australia Felix 19 The courses of all the rivers, with scarcely any exception, exhibit a series of ponds or water-holes. 1867E. P. Ramsay in Ibis III. 413 The Musk-Duck frequents alike the lakes, lagoons, rivers, and even the creeks and water-holes. 1890Goldfields of Victoria 26 The dry weather has reduced Boggy Creek to a mere string of water-holes.
†2. Naut. A hole to allow the escape of water (see quot.). Obs. rare.
1794Rigging & Seamanship I. 117 A water-hole, from 4 to 6 inches in diameter, is made in the second cloth from each leech [in Spritsail Course].
3. Astr. The part of the radio spectrum between 1420 MHz (at which hydrogen atoms radiate) and about 1660 MHz (at which hydroxyl radicals radiate). [So called because hydrogen and hydroxyl are the constituents of water.]
1976Sci. News 28 Feb. 132 Between the hydrogen and hydroxyl (OH) bands..lies the ‘water hole’,..which..offers a frequency less drowned in deep-space static. 1979Daily Tel. 10 Nov. 11/1 Scientists have argued that..the radio water-hole will be the most logical communications medium for intelligences across the universe.
Hence ˈwater-holing, the operation of trenching between the plants in the cultivation of coffee.
1880Spons' Encycl. Industr. Arts etc. ii. 698 A third operation is called ‘trenching’, or ‘waterholing’. The trenches are made across the slope, and may be either open or closed. |